Dave,
Same area but different stone I think, its very like its more famous brother Liscannor stone. The stuff is still quarried but in any case mine was hundreds of years old you can't get them that size now. I bought it while it was still on the roof of an open barn, now each slab is around 5' x 4' and 1" to 2" thick, you can't posiibly lift one. There were 20 or 30 of these slabs ON A ROOF! The were supported by one oak beam (tree actually) running down the length of the building and not much else as far as I can remember. I had them on the floor for about 15 years but my wife hated the fact they were difficult to clean as they are very riven ( more so than Liscannor which is how you tell the difference).
Give me a shout if you ever make it back again, Pierre from Art of Clean was here a few weeks ago and drove that stunning Clare coast road, a drivers dream on a good day (rare in the west of Ireland)
Terry